First of all take a bowl and combine the lime juice, minced garlic, olive oil, ground cumin, smoked paprika, salt, and black pepper.
Place the steak into a zip-top bag and pour the marinade over it.
Seal the bag, ensuring that the steak is fully coated, and marinate in the refrigerator for at least 30 minutes. For best results, marinate for 2 hours.
After marinating, place the steak on a preheated grill or pan and cook for 3-4 minutes on each side to achieve a medium-rare level of doneness.
Let the steak rest for a few minutes before slicing against the grain. Serve with tortillas and your preferred fajita toppings.
